All names: WD 0025-004, SDSS J002749.99-001023.3, SDSS J002750.01-001023.5, [SGR2010] J0027-0010, SDSS J002750.00-001023.4, Gaia EDR3 2543544675676774016, LBQS 0025-0026, SDSS J002749.99-001023.4, WIRED J002749.99-001023.3, Gaia DR2 2543544675676774016, USNO-A2.0 0825-00108222, GALEX J002749.9-001022, PB 5967, 2MASS J00274999-0010234, Gaia DR3 2543544675676774016, SDSS J002750.01-001023.4, TIC 284078168
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 00 27 50.09 (0.1) | 00 27 50.02 | 00 27 50.08 (0.1) | 00 27 50.00 (0.1) | 00 27 50.01 | 00 27 49.73 | 00 27 49.99 | ||||
| Declination | -00 10 23.82 (0.07) | -00 10 23.52 | -00 10 23.80 (0.09) | -00 10 23.47 (0.07) | -00 10 23.50 | -00 10 18.48 | -00 10 23.35 | ||||
| Spectral type | DB+M3 | DB+M | DA1.1+dM | DB+M | DB: | ||||||
| Effective temperature | [K] | 6300.0 (1) | 6300.0 (3) | ||||||||
| log(g) | [cgs] | 8.84 (0.1) | 10.00 (0.003) | ||||||||
| Mass | [M☉] | ||||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 4.23 (0.1) | 4.34 (0.2) | 4.23 (0.1) | |||||||
| Distance | [pc] | 236.18 (6) | 230.46 (8) | 236.18 (6) | |||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 76.32659378 (0.1) | 76.43104834 (0.3) | 76.327 (0.1) | |||||||
| Proper motion (declination) | [mas/yr] | -21.51272739 (0.09) | -21.66927933 (0.2) | -21.513 (0.09) | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | WDMS | WDMS | |||||||||
| B magnitude | 18.00 | ||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | 15.05 (0.005) | ||||||||||
| H magnitude | 14.56 (0.005) | ||||||||||
| K magnitude | 14.25 (0.006) | ||||||||||
| u magnitude | 18.41 (0.02) | 18.37 (0.02) | 18.38 (0.02) | 18.51 | 18.39 (0.02) | ||||||
| g magnitude | 18.23 (0.007) | 18.21 (0.007) | 18.17 (0.02) | 18.36 | 18.18 (0.02) | ||||||
| r magnitude | 17.91 (0.007) | 17.92 (0.007) | 17.91 (0.02) | 18.03 | 17.91 (0.02) | ||||||
| i magnitude | 17.06 (0.006) | 17.08 (0.006) | 17.09 (0.01) | 17.23 | 17.08 (0.01) | ||||||
| z magnitude | 16.44 (0.009) | 16.46 (0.009) | 16.45 (0.02) | 16.64 | 16.46 (0.02) | ||||||
| G magnitude | 17.51 (0.01) | 17.52 | 17.51 (0.003) | ||||||||
| BP magnitude | 18.16 (0.01) | 18.13 | |||||||||
| RP magnitude | 16.62 (0.005) | 16.62 | |||||||||
| Pan g magnitude | 18.21 (0.003) | ||||||||||
| Pan r magnitude | 17.93 (0.003) | ||||||||||
| Pan i magnitude | 17.08 (0.004) | ||||||||||
| Pan z magnitude | 16.56 (0.003) | ||||||||||
| Pan y magnitude | 16.30 (0.005) | ||||||||||
| E(B-V) | 0.020 | ||||||||||
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.